184334
Polyploidy leads to rapid formation of new species because of:
1 isolation
2 development of multiple sets of chromosomes
3 mutation
4 genetic recombination
Explanation:
Polyploidy leads to rapid formation of new species because of polyploidy is a condition having multiple sets of chromosome rather than normal haploid or diploid number. Polyploidy is the phenomenon which leads to increases in the number of chromosomes thus increasing the number of genes.
Manipal-2006
Principle of Inheritance and Variation
184335
Which of the following cross will produce terminal flower in graden pea?
1 \(\mathrm{AA} \times \mathrm{Aa}\)
2 AA \(\times\) aa
3 \(\mathrm{Aa} \times \mathrm{Aa}\)
4 Aa \(\times\) AA
Explanation:
Terminal flower will produce in garden pea when crossed 'Aa \(\times \mathrm{Aa}\) '. - Axillary position is dominant to terminal position (a), therefore, to produce terminal flower, the individual should have atleast one recessive allele. - When Aa \(\times\) Aa is crossed. 3:1 ratio of axiallry and terminal flower formed.
JIPMER-2013
Principle of Inheritance and Variation
184337
Which of the following charterers was not chosen by Mendel?
1 Position of Pod
2 Pod colour
3 Position of Flower
4 Pod shape
Explanation:
Characters chosen by Mendel are | (i) Stem height | Tall | Dwarf | | :--- | :---: | :---: | | (ii) Flower colour | Violet | White | | (iii) Flower position | Axial | Terminal | | (iv) Pod shape | Inflated | Constricted | | (v) Pod colour | green | yellow | | (vi) Seed shape | Round | Wrinkled | | (vii) Seed colour | Yellow | green | Position of pod was not chosen.
AP EAMCET-03.09.2021 Shift-II
Principle of Inheritance and Variation
184338
What is the ratio for test cross in dihybrid experiment of Mendel?
1 \(9: 3: 3: 1\)
2 \(1: 1: 1: 1\)
3 \(7: 1: 1: 7\)
4 \(11: 1: 1: 3\)
Explanation:
The crossing of dihybrid \(F_{1}\) individual with a homozygous recessive parent is called dihybrid test cross. Its phenotypic and genotypic ratio is \(1: 1: 1: 1\).
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Principle of Inheritance and Variation
184334
Polyploidy leads to rapid formation of new species because of:
1 isolation
2 development of multiple sets of chromosomes
3 mutation
4 genetic recombination
Explanation:
Polyploidy leads to rapid formation of new species because of polyploidy is a condition having multiple sets of chromosome rather than normal haploid or diploid number. Polyploidy is the phenomenon which leads to increases in the number of chromosomes thus increasing the number of genes.
Manipal-2006
Principle of Inheritance and Variation
184335
Which of the following cross will produce terminal flower in graden pea?
1 \(\mathrm{AA} \times \mathrm{Aa}\)
2 AA \(\times\) aa
3 \(\mathrm{Aa} \times \mathrm{Aa}\)
4 Aa \(\times\) AA
Explanation:
Terminal flower will produce in garden pea when crossed 'Aa \(\times \mathrm{Aa}\) '. - Axillary position is dominant to terminal position (a), therefore, to produce terminal flower, the individual should have atleast one recessive allele. - When Aa \(\times\) Aa is crossed. 3:1 ratio of axiallry and terminal flower formed.
JIPMER-2013
Principle of Inheritance and Variation
184337
Which of the following charterers was not chosen by Mendel?
1 Position of Pod
2 Pod colour
3 Position of Flower
4 Pod shape
Explanation:
Characters chosen by Mendel are | (i) Stem height | Tall | Dwarf | | :--- | :---: | :---: | | (ii) Flower colour | Violet | White | | (iii) Flower position | Axial | Terminal | | (iv) Pod shape | Inflated | Constricted | | (v) Pod colour | green | yellow | | (vi) Seed shape | Round | Wrinkled | | (vii) Seed colour | Yellow | green | Position of pod was not chosen.
AP EAMCET-03.09.2021 Shift-II
Principle of Inheritance and Variation
184338
What is the ratio for test cross in dihybrid experiment of Mendel?
1 \(9: 3: 3: 1\)
2 \(1: 1: 1: 1\)
3 \(7: 1: 1: 7\)
4 \(11: 1: 1: 3\)
Explanation:
The crossing of dihybrid \(F_{1}\) individual with a homozygous recessive parent is called dihybrid test cross. Its phenotypic and genotypic ratio is \(1: 1: 1: 1\).
184334
Polyploidy leads to rapid formation of new species because of:
1 isolation
2 development of multiple sets of chromosomes
3 mutation
4 genetic recombination
Explanation:
Polyploidy leads to rapid formation of new species because of polyploidy is a condition having multiple sets of chromosome rather than normal haploid or diploid number. Polyploidy is the phenomenon which leads to increases in the number of chromosomes thus increasing the number of genes.
Manipal-2006
Principle of Inheritance and Variation
184335
Which of the following cross will produce terminal flower in graden pea?
1 \(\mathrm{AA} \times \mathrm{Aa}\)
2 AA \(\times\) aa
3 \(\mathrm{Aa} \times \mathrm{Aa}\)
4 Aa \(\times\) AA
Explanation:
Terminal flower will produce in garden pea when crossed 'Aa \(\times \mathrm{Aa}\) '. - Axillary position is dominant to terminal position (a), therefore, to produce terminal flower, the individual should have atleast one recessive allele. - When Aa \(\times\) Aa is crossed. 3:1 ratio of axiallry and terminal flower formed.
JIPMER-2013
Principle of Inheritance and Variation
184337
Which of the following charterers was not chosen by Mendel?
1 Position of Pod
2 Pod colour
3 Position of Flower
4 Pod shape
Explanation:
Characters chosen by Mendel are | (i) Stem height | Tall | Dwarf | | :--- | :---: | :---: | | (ii) Flower colour | Violet | White | | (iii) Flower position | Axial | Terminal | | (iv) Pod shape | Inflated | Constricted | | (v) Pod colour | green | yellow | | (vi) Seed shape | Round | Wrinkled | | (vii) Seed colour | Yellow | green | Position of pod was not chosen.
AP EAMCET-03.09.2021 Shift-II
Principle of Inheritance and Variation
184338
What is the ratio for test cross in dihybrid experiment of Mendel?
1 \(9: 3: 3: 1\)
2 \(1: 1: 1: 1\)
3 \(7: 1: 1: 7\)
4 \(11: 1: 1: 3\)
Explanation:
The crossing of dihybrid \(F_{1}\) individual with a homozygous recessive parent is called dihybrid test cross. Its phenotypic and genotypic ratio is \(1: 1: 1: 1\).
184334
Polyploidy leads to rapid formation of new species because of:
1 isolation
2 development of multiple sets of chromosomes
3 mutation
4 genetic recombination
Explanation:
Polyploidy leads to rapid formation of new species because of polyploidy is a condition having multiple sets of chromosome rather than normal haploid or diploid number. Polyploidy is the phenomenon which leads to increases in the number of chromosomes thus increasing the number of genes.
Manipal-2006
Principle of Inheritance and Variation
184335
Which of the following cross will produce terminal flower in graden pea?
1 \(\mathrm{AA} \times \mathrm{Aa}\)
2 AA \(\times\) aa
3 \(\mathrm{Aa} \times \mathrm{Aa}\)
4 Aa \(\times\) AA
Explanation:
Terminal flower will produce in garden pea when crossed 'Aa \(\times \mathrm{Aa}\) '. - Axillary position is dominant to terminal position (a), therefore, to produce terminal flower, the individual should have atleast one recessive allele. - When Aa \(\times\) Aa is crossed. 3:1 ratio of axiallry and terminal flower formed.
JIPMER-2013
Principle of Inheritance and Variation
184337
Which of the following charterers was not chosen by Mendel?
1 Position of Pod
2 Pod colour
3 Position of Flower
4 Pod shape
Explanation:
Characters chosen by Mendel are | (i) Stem height | Tall | Dwarf | | :--- | :---: | :---: | | (ii) Flower colour | Violet | White | | (iii) Flower position | Axial | Terminal | | (iv) Pod shape | Inflated | Constricted | | (v) Pod colour | green | yellow | | (vi) Seed shape | Round | Wrinkled | | (vii) Seed colour | Yellow | green | Position of pod was not chosen.
AP EAMCET-03.09.2021 Shift-II
Principle of Inheritance and Variation
184338
What is the ratio for test cross in dihybrid experiment of Mendel?
1 \(9: 3: 3: 1\)
2 \(1: 1: 1: 1\)
3 \(7: 1: 1: 7\)
4 \(11: 1: 1: 3\)
Explanation:
The crossing of dihybrid \(F_{1}\) individual with a homozygous recessive parent is called dihybrid test cross. Its phenotypic and genotypic ratio is \(1: 1: 1: 1\).